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Potassium Yttrium Tungstate Crystal | KYW Crystal

HM2870

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Potassium Yttrium Tungstate (KYW) Crystal offers strong phonon modes at 765 cm⁻¹ and 905 cm⁻¹ with polarization-dependent Raman gain. It features excellent mechanical properties, a high optical damage threshold, and a broad transparency range from 350 nm to 5.5 µm. HM is a professional supplier and manufacturer of high-quality KYW Crystal, offering customized solutions and competitive prices.

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Data sheet

Density6.61 g/cm³
MaterialsKYW Crystal
Molecular FormulaKY(WO4)2

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Potassium Yttrium Tungstate (KYW) Crystal is a high-performance optical material with strong phonon modes at 765 cm⁻¹ and 905 cm⁻¹, providing efficient Raman gain that depends on pump polarization. It offers excellent mechanical strength, a high optical damage threshold, and a broad transparency range from 350 nm to 5.5 µm. Additionally, its thermal conductivity is approximately three times that of barium nitrate, making it effective for high-performance laser applications. Heeger Materials provides high-quality Potassium Yttrium Tungstate (KYW) Crystal, ensuring reliable performance for advanced optical systems

Potassium Yttrium Tungstate Crystal | KYW Crystal

KYW Crystal Properties

Chemical Formula

KY(WO4)2

Crystal Structure

Monoclinic, C2/c

Lattice Parameters

a = 10.64 Å, b = 10.32 Å, c = 7.55 Å

Density

6.61 g/cm³

Mohs Hardness

4-5

Transparency Range

0.35-5.5 μm

Refractive Indices (1064 nm, room temperature)

np = 1.9688, nm = 2.0065, ng = 2.0507

Thermal Conductivity (average value)

3.3 Wm⁻¹K⁻¹

dn/dT

dnp/dT = 14.6 × 10⁻⁶ K⁻¹

dnm/dT = 8.9 × 10⁻⁶ K⁻¹

dng/dT = 12.4 × 10⁻⁶ K⁻¹

Raman Frequency Shift (T = 300 K)

905 cm⁻¹ (ENm)

765 cm⁻¹ (ENm)

Raman Gain (1064 nm pump, steady-state regime)

3.6 cm/GW

KYW Crystal Specifications

Crystal Orientationb-cut
Optical Aperture>90%
Surface Dimension Tolerances+0.0/-0.1 mm
Length Tolerance±0.1 mm
Parallelism Error<20 arcsec
Perpendicularity Error<10 arcmin
Protective Bevel<0.1 mm at 45˚
Surface Quality10-5 S-D
Wavefront Distortion<λ/4 @ 632.8 nm
Surface Flatness<λ/8 @ 632.8 nm
CoatingAR (R<0.7%) @ 500-650 nm
Laser Damage Threshold>10 J/cm² @ 1064 nm, 10 ns

KYW Crystal Stock Dimensions

Face Dimensions

Length

Coating

5x5 mm

15 mm

Uncoated

5x5 mm

30 mm

Uncoated

5x5 mm

45 mm

Uncoated

5x5 mm

15 mm

AR/AR @ 450-800 nm

5x5 mm

30 mm

AR/AR @ 450-800 nm

5x5 mm

45 mm

KYW Crystal Key Features

  • Transparency ranges from 300 nm to 5.5 μm
  • Two significant Raman shifts at 765 cm⁻¹ and 905 cm⁻¹

KYW Crystal Applications

  • Raman Lasers: Utilized in Raman laser systems due to its strong phonon modes and efficient Raman gain.
  • Laser Radiation Frequency Tuning: Enables precise frequency tuning for various laser applications.
  • Nonlinear Optics: Supports frequency conversion processes such as second-harmonic generation (SHG) and optical parametric oscillation (OPO).
  • High-Power Laser Systems: Suitable for high-power laser applications due to its high optical damage threshold and thermal conductivity.
  • Spectroscopy and Sensing: Used in advanced spectroscopic techniques and sensing applications requiring stable and efficient laser sources.

KYW Crystal Packing And Shipping

Potassium Yttrium Tungstate (KYW) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Potassium Yttrium Tungstate Crystal | KYW Crystal Packing

Where to Buy Potassium Yttrium Tungstate (KYW) Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Laser Crystals products including Potassium Yttrium Tungstate (KYW) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors. 

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